
Concept explainers
To describe: Where to flip inequality symbol when solving inequalities by giving a suitable example.

Answer to Problem 11STP
Inequality sign is flipped when there is a negative sign before the unknown variable for which inequality is being solved. For example:
Now on dividing each side by 2,
Now to multiply each side by
This is how, inequality sign is flipped.
Explanation of Solution
Given information: Any inequality having a negative sign before its unknown variable for which it is to be solved.
Concept used: To remove negative sign before unknown variable, both sides are multiplied by
Calculation: Inequality sign is flipped only when unknown variable`s term in the given inequality is negative so that to make the variable positive, based on the above concept.
Chapter 5 Solutions
Pre-Algebra Student Edition
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